1 class Page: 2 def __init__(self,list_count,current_page,page_list_num=10,page_num=7): 3 #总条数 4 self.list_count = list_count 5 #每页显示的数据条数 6 self.page_list_num = page_list_num 7 #显示的页码 8 self.page_num = page_num 9 #当前页数 10 if current_page<1: 11 self.current_page = 1 12 elif current_page>self.page_count: 13 self.current_page = self.page_count 14 else: 15 self.current_page = current_page 16 17 18 @property 19 def page_count(self): 20 p,x = divmod(self.list_count,self.page_list_num) 21 if x: 22 return p+1 23 else: 24 return p 25 @property 26 def start(self): 27 """开始条数""" 28 return int((self.current_page-1)*self.page_list_num) 29 30 @property 31 def end(self): 32 """结束条数""" 33 return int(self.start + self.page_list_num + 1) 34 35 @property 36 def start_page(self): 37 """开始页数""" 38 if self.current_page - (self.page_num-1)/2 < 1: 39 return 1 40 else: 41 return int(self.current_page - (self.page_num-1)/2) 42 43 @property 44 def end_page(self): 45 """结束页数""" 46 if self.current_page + (self.page_num-1)/2 > self.page_count: 47 return self.page_count 48 else: 49 return int(self.current_page + (self.page_num-1)/2) 50 51 def page_str(self,url): 52 self.page_html = [] 53 if self.page_count <= self.page_num: 54 for i in range(1,self.page_count+1): 55 if i == self.current_page: 56 a_tag = '<a class="active" href="%s?p=%s">%s</a>' % (url,i,i) 57 self.page_html.append(a_tag) 58 else: 59 a_tag = '<a href="%s?p=%s">%s</a>' % (url,i,i) 60 self.page_html.append(a_tag) 61 else: 62 for i in range(self.start_page,self.end_page+1): 63 if i == self.current_page: 64 a_tag = '<a class="active" href="%s?p=%s">%s</a>' % (url,i,i) 65 self.page_html.append(a_tag) 66 else: 67 a_tag = '<a href="%s?p=%s">%s</a>' % (url,i,i) 68 self.page_html.append(a_tag) 69 70 if self.start_page > 2: 71 self.page_html.insert(0,'<a>...</a>') 72 if self.start_page - 1 >= 1: 73 self.page_html.insert(0,'<a href="%s?p=%s">%s</a>' % (url,1,1)) 74 75 76 if self.end_page < self.page_count - 2: 77 self.page_html.append('<a>...</a>') 78 if self.end_page + 1 == self.page_count -1: 79 self.page_html.append('<a href="%s?p=%s">%s</a>' % (url,self.page_count-1,self.page_count-1)) 80 if self.end_page <= self.page_count - 1: 81 self.page_html.append('<a href="%s?p=%s">%s</a>' % (url,self.page_count,self.page_count)) 82 83 self.page_html.insert(0,'<a href="%s?p=%s">%s</a>' % (url,1 if self.current_page==1 else self.current_page-1,'上一页')) 84 self.page_html.append('<a href="%s?p=%s">%s</a>' % (url,self.page_count if self.current_page==self.page_count else self.current_page+1,'下一页')) 85 86 return self.page_html
主要用于django web框架
用法示例：
1 import page 2 def index(request): 3 #获取当前页数 4 p = request.GET.get('p',1) 5 p = int(p) 6 objall = models.obj.objects.all() 7 pg = page.Page(len(objall),p) 8 9 page_number_list = objall[pg.start:pg.end] 10 11 page_html = pg.page_str("/index/") 12 page_html = "".join(page_html) 13 return render_to_response('index.html',{'page_number_list':page_number_list,'page_html':page_html}
模板：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>fenye</title> <style type="text/css"> a{ padding: 5px; margin: 5px; background-color:#ffffff; color: #000000; border: 1px solid #000; text-decoration: none; } a.active{ background-color: red; } </style> </head> <body> <ul> {% for i in page_number_list %} <li>{{i}}</li> {% endfor%} <br> <div>{{ page_html|safe }}</div> </ul> </body> </html>
